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Finding the Fourth Proportional to 53,221.87, 79,809.63 and 15,262.77

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Solution

The fourth proportional to 53,221.87, 79,809.63 and 15,262.77 is: 22,887.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,221.87 : 79,809.63 = 15,262.77 : x
  2. Step 2: Convert to fraction form
    53,221.87/79,809.63 = 15,262.77/x
  3. Step 3: Cross multiply
    53,221.87x = 79,809.63 × 15,262.77
  4. Step 4: Simplify right side
    53,221.87x = 1,218,116,026.48
  5. Step 5: Solve for x
    x = 1,218,116,026.48/53,221.87
  6. Step 6: Final answer
    x = 22,887.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.